Brake for street-cars



(No Model.)

G. TROLLER.

BRAKE FOR STREET CARS.

No. 363,777. I Patented May 24, 1887.

1 PE: 0 l7 0 l HZ D I, I D

f 0 l m lava/M r- U ITED STATES PATENT OFFICE.

GEORGE TROLLER, OF MILYVAUKEE, VISCONSIN.

BRAKE FOR STREET-CARS.

SPECIFICATION forming part of Letters Patent No. 363,777, dated May 24:,1887.

Application filed February 8, 1887. Ferial No. 326,888. (No model.)

To aZZ whom, it may concern:

Be it known that I, GEORGE TROLLER, of Milwaukee,in the county ofMilwaukee, and in the State of \Visconsin, have invented certainnew anduseful Improvements in Brakes for Street-Oars and other Vehicles; and Ido hereby declare that the following is a full, clear, and exactdescription thereof.

My invention relates to brakes for streetcars and other vehicles; and itconsists in certain peculiarities of construction and combination ofparts, to be hereinafter described with reference to the accompanyingdrawings, and subsequently claimed.

In the drawings, Figure 1 represents a side elevation of a vehiclehaving my brake applied thereto; Fig. 2, a plan view of the same,looking up; and Fig. 3, a detail perspective view of the brake-lever.

Referring by letter to the drawings, A represents a streetcar or other vehicle,from the under side of which is suspended, by means of linksB,the beams O, that carry the brake-shoes D, arranged to be brought inand out of confact with the wheels E of said vehicle. A bracket, F, iscentrally suspended from the under side of the vehicle, and in thisbracket is journaled a vertical post, G, to which latter is rigidlysecured a transverse bar, H. A toggle-link, I, unites the respectiveends of the bar H with arms J, that are pivotall y connected to thebeams O, that carry the brakeshoes D, and a shackle, K, connects saidbar with the rear end of a rod, L, that has its forward end fastened tothe brake-lever M, thelatter being fulcrumed to a bracket, N, secured tothe vehicle. The brake-lever has pivotally connected thereto a dog, 0,that is arranged to engage a ratchet-plate, P, on the vehicle, and thisdog is also pivotally connected to the lower end of a spring-plate, Q,that has its upper end made fast to said brakelever.

A slot, R, in thespring-plateOforms a guide for a lug, S, on the brakelever, and when the curved portion of this spring-plate is compressed bythe operator the vertical movement of said spring-plate will serve toraise the dog 0, to bring the latter out of contact with theratchet-plate P.

If found desirable, the slot R in the springplate and the lug S on thebrakelever may be omitted.

\Vhen the brake-lever Mis pushed forward, the transverse bar H isbrought more or less in line parallel with the brake-beams G, and

the arms J are forced outward, to move said beams, and thereby bring theshoes D against the wheels E, and the dog 0 automatically engages withthe ratchetplate P, to retain the brake in its set position untilreleased by th operator.

Having thus fully described my invention, What I claim as new, anddesire to secure by Letters Patent, is

1. In a brake for streetcars and other vehicles, the combination ofloosely-hung beams carrying brakeshoes, arms pivotally connected to therespective ends of the beams, a pivotal transverse bar, toggle-linksconnecting said arms andbar, anda lever mechanism for actuating the bar,as and for the purpose set forth.

2; In a brake for street-cars or other Vehicles', the combination ofloosely-hung beams carrying brake-sl1oes,arms pivotally connected to therespective ends of the beams, a bracket centrally suspended from thevehicle, a post j ournaled in the bracket, a transverse bar rigidlysecured to the post, toggle-links connecting said arms and bar, and alevermechapism for actuating the bar, as and for the purpose set forth.I

3. The combination of the lever having a dog pivotall y connectedthereto, a spring-plate having one end thereof pivoted to the dog andits other end made fast to the lever, and a ratchet-plate for engagementwith said dog, as and for the purpose set forth.

4. The combination of the lever provided with a lug and having a dogpivotally connected thereto, a slotted spring-plate having one endthereof pivoted to the dog and its other end made fast to the lever, anda ratchetplate for engagement with said dog, as and for r the purposeset forth.

5. In a brake for street-cars or other vehicles, the combination ofloosely-hung beams carrying brake shoes, arms pivotally connected to therespective ends of the beams, a pivotal transverse bar toggled to saidarms, a lever have hereunto set my hand, at Milwaukee, in having a dogpivotally connected thereto, a the county of Milwaukee and State of\Vis- In spring-plate secured at one end tothe dog and consin, in thepresence of two Witnesses. made fast at its other end to the lever a t 5ratchetplate to engage said dog, and a rod GEORGE IROLLEI" connectingsaid lever with the transverse bar, Witnesses: as and for the purposeset forth. MAURICE F. FREAK,

In testimony that I claim the foregoing I N. E. OLiiPHAN'r.

